Monday, July 12, 2010

Module 3-Orthorectification

Rectify Image of Pensacola Bay




This lab was educational and it was relatively easy to understand the concepts as the lab instructions were quite helpful.  The items that took the most time were the continual crashing of the system, playing with the RMS values for the Ground Control Points (GCP's) and trying to get the resolution of the original image better.  I never was able to get the image to display better and it was a little tricky to get my first 3 control points placed with a low RMS.  I was able to identify some nice features in the reference and input images but the resolution was so poor it took a few wild guesses to get it close.  My overall RMS was 0.658. 
The ERDAS software is real quirky and it seems like we are missing some tutorials or other key information that may help?
The links to my XPS Drawing and Excel file is below:



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